org.knowceans.corpus.analysis
Class LdaPerplexity

java.lang.Object
  org.knowceans.corpus.analysis.LdaPerplexity

public class LdaPerplexity
extends java.lang.Object

LdaPerplexity implements the perplextity metric for unlabeled test data sets

TODO: thorough check after change of field tc from class TermCorpusOld.

Author:

heinrich

Field Summary

private double[][]	phi
private TermCorpus	tc
private double[][]	theta

Constructor Summary

LdaPerplexity()

Method Summary

private double	loglik(int doc) return the likelihood of a document from its index
static void	main(java.lang.String[] args)
double	run(java.lang.String corpusfile, java.lang.String model, boolean zip)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

phi

private double[][] phi

theta

private double[][] theta

tc

private TermCorpus tc

Constructor Detail

LdaPerplexity

public LdaPerplexity()

Method Detail

main

public static void main(java.lang.String[] args)

run

public double run(java.lang.String corpusfile,
                  java.lang.String model,
                  boolean zip)

loglik

private double loglik(int doc)

return the likelihood of a document from its index

Parameters:

name -

Returns: